Consulta: creatorFacets:"Jaspers, E."
Registros recuperados: 3
Data/hora: 02/06/2024 06:57:08

Testicular and spermatozoal characteristics of channel catfish, &lt;i&gt;Ictalurus punctatus&lt;/i&gt;, outside the spawning season
Provedor de dados: 27
Autores: Jaspers, E.; Avault, J.W. Jr.; Roussel, J.D.
Several testicular and spermatological parameters of 48 male channel catfish, &lt;i&gt;Ictalurus punctatus&lt;/i&gt; (Rafinesque) were studied during 6 months (November through April) outside the spawning season. Two stocks (a domestic and a wild one) and within each stock 2- and 3-year-old fish were compared. Within age-groups, the domestic fish were considerably larger than the wild ones. In each stock, the 3-year-olds outgrew the 2-year-olds. The testes consisted of a white spermatogenic and pink glandular part, averaging 1.14 and 0.56 g respectively. A significant increase in both parts was noticed in March, continuing during April. One 3-year-old male in each stock was azoospermic, even though these fish had well developed testes and exhibited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gonads; Spawning seasons; Ictalurus punctatus.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3585

Onderzoek van de abiotische en biotische evolutie van eenvoudige water-ekosystemen &lt;i&gt;in vitro&lt;/i&gt; (1973)
Provedor de dados: 27
Autores: Somers, D.; Jaspers, E.
Tipo: Info:eu-repo/semantics/article
Ano: 1974
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8009

Ecotoxicological testing for the marine environment: report on an international Symposium held in Belgium in 1983
Provedor de dados: 27
Autores: Persoone, G.; Jaspers, E.; Claus, C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecotoxicology; Marine environment; Toxicity tests.
Ano: 1986
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3224